65/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 7,425 Google reviews, the most in Rialto.
- 4.8★ from 7,425 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5001 Ontario Mills Pkwy, Ontario, CA 91764
Best HVAC Contractors in Rialto, CA (2026)
623 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rialto: All Pro Cooling, Heating, Plumbing & Electrical, CR Score 65/100; 4.8★ from 7,425 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Air One Air Conditioning, Heating, & Plumbing, posts 24/7 hours; ranked #2 of 623.
- 22
Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 4,107 Google reviews at 4.7★, the most of 623 ranked after All Pro Cooling, Heating, Plumbing & Electrical; ranked #22.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
623 Rialto HVAC contractors are ranked here by CR Score, from ten published factors. 223 are open 24/7, 479 open Saturdays and 311 open Sundays, based on posted hours. The median Google rating is 4.9★ across 623 rated businesses.
Top 10 HVAC contractors in Rialto at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | All Pro Cooling, Heating, Plumbing & Electrical | 65 | 4.8★ (7,425) | Ontario, 10 mi away | 24/7 | Overall |
| 2 | Air One Air Conditioning, Heating, & Plumbing | 64 | 4.9★ (786) | Colton, 2 mi away | 24/7 | Emergencies |
| 3 | MSP HEATING AND AIR CONDITIONING | 64 | 5.0★ (1,203) | Jurupa Valley, 7 mi away | 24/7 | — |
| 4 | Year Round Heating & Air Conditioning | 64 | 5.0★ (1,159) | Redlands, 8 mi away | 24/7 | — |
| 5 | Lasting Legacy Plumbing Heating and Air | 64 | 5.0★ (1,343) | Redlands, 11 mi away | 24/7 | — |
| 6 | Henley's Plumbing & Air | 63 | 4.8★ (881) | San Bernardino, 6 mi away | 24/7 | — |
| 7 | Service Champions Plumbing, Heating & AC | 62 | 4.8★ (1,263) | Colton, 4 mi away | Sat · Sun · Evenings | — |
| 8 | Ace Home Heating & Air Conditioning | 62 | 4.7★ (1,176) | Riverside, 8 mi away | 24/7 | — |
| 9 | 4 Points A/C and Heating | 62 | 4.9★ (949) | San Bernardino, 6 mi away | 24/7 | — |
| 10 | NexGen HVAC & Plumbing | 62 | 4.8★ (708) | Fontana, 9 mi away | 24/7 | — |
The 623 best HVAC contractors in Rialto, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Colton, 2 mi away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 786 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 786 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 491 Wildrose Ave, Colton, CA 92324
Based in Jurupa Valley, 7 mi away
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 1,203 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,203 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2932 Rubidoux Blvd Suite B, Jurupa Valley, CA 92509
Based in Redlands, 8 mi away
64/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 1,159 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,159 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10444 Corporate Dr Unit A-B, Redlands, CA 92374
Based in Redlands, 11 mi away
64/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 1,343 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,343 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 612 Texas St, Redlands, CA 92374
Based in San Bernardino, 6 mi away
63/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 881 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 881 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 337 W 40th St, San Bernardino, CA 92407
Based in Colton, 4 mi away
62/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 1,263 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,263 Google reviews
- Hours
- Mon–Thu 5 AM–11 PM · Fri–Sun 6 AM–11 PM
- Address
- 600 E Valley Blvd, Colton, CA 92324
Based in Riverside, 8 mi away
62/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 1,176 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 1,176 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5324 Mission Blvd #3, Riverside, CA 92509
Based in San Bernardino, 6 mi away
62/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 949 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 949 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 118 E Airport Dr #204, San Bernardino, CA 92408
Based in Fontana, 9 mi away
62/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 708 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 708 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10820 Mulberry Ave, Fontana, CA 92337
Based in Jurupa Valley, 10 mi away
62/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 401 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 401 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9346 Galena St Ste. C, Jurupa Valley, CA 92509
Based in Riverside, 9 mi away
62/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 729 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 729 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3401 Gato Ct suite a, Riverside, CA 92507
Based in Riverside, 9 mi away
62/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 305 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 305 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1525 3rd St Suite F, Riverside, CA 92507
Based in Loma Linda, 7 mi away
62/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 270 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 270 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 25041 Redlands Blvd, Loma Linda, CA 92354
Based in San Bernardino, 7 mi away
61/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 2,293 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,293 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 25260 E Baseline St, San Bernardino, CA 92410
Based in Rialto
61/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 51 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 622 W Rialto Ave, Rialto, CA 92376
Based in Redlands, 13 mi away
61/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 840 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 840 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1670 Sessums Dr, Redlands, CA 92374
Based in Rancho Cucamonga, 15 mi away
61/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 705 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.9★ from 705 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8327 Orange St, Rancho Cucamonga, CA 91701
Based in Upland, 18 mi away
61/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 1,292 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.9★ from 1,292 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 665 N Central Ave, Upland, CA 91786
Based in Riverside, 12 mi away
61/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 571 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 571 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6611 Arlington Ave, Riverside, CA 92504
Based in Rancho Cucamonga, 10 mi away
61/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 201 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8351 Rochester Ave ste 103b, Rancho Cucamonga, CA 91730
Based in Corona, 20 mi away
61/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.7★ from 4,107 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 4,107 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1240 Graphite Dr, Corona, CA 92881
Based in Rialto
61/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 116 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 116 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun 8 AM–4 PM
- Address
- 823 W Mariana St, Rialto, CA 92376
Based in Redlands, 11 mi away
61/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 516 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 516 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 415 E High Ave, Redlands, CA 92374
Based in Montclair, 18 mi away
61/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 977 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 977 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5623 E Arrow Hwy, Montclair, CA 91763
HVAC contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 623 ranked HVAC contractors here; the rest are on their profiles.
Also serving Rialto
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A.C. DUDE | 5.0★ (2) | 8 mi |
| AAVCO Plumbing, Heating & Air Conditioning - Riverside | 5.0★ (2) | 7 mi |
| Aced It Heating & AC Repair | 5.0★ (306) | 20 mi |
| Active Temp Inc. | 3.0★ (2) | 7 mi |
| AIR TECHS Heating and Cooling | 3.5★ (2) | 7 mi |
| Avis Plumbing Heating Air Conditioning | 5.0★ (2) | 4 mi |
| Cantrell's Heating & Air Conditioning | 5.0★ (73) | 11 mi |
| Crisp Services Air Conditioning and Heating | In Rialto | |
| Daniel Heating & Air Conditioning | 5.0★ (2) | 9 mi |
| DECO Air Conditioning and Heating | 4.8★ (82) | 8 mi |
| E.G. HVAC & REFRIGERATION CO. | 5.0★ (2) | 4 mi |
| Hasco Heating Air Conditioning Services Co | 4.7★ (111) | 8 mi |
| HVAC Assistance - 24/7 On Call | 4.7★ (52) | 4 mi |
| Innovative Air Solutions Inc | 3.5★ (2) | In Rialto |
| Interstate Air Quality | 5.0★ (2) | 9 mi |
| Level-Up Home Maintenance LLC | 5.0★ (14) | In Rialto |
| NexGen HVAC & Plumbing | 4.6★ (507) | 15 mi |
| Pro Comfort Air Systems - Heating & Cooling Contractor | 1.0★ (2) | 6 mi |
| Rialto Air Conditioning | In Rialto | |
| Westpoint Refrigeration | 3.0★ (2) | 9 mi |
How much do HVAC contractors cost in Rialto?
National price ranges in USD, not adjusted for Rialto. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
How to check an HVAC contractor's license in California
In California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
- Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
When to hire an HVAC contractor in California
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
How we ranked Rialto HVAC contractors
We scored 623 Rialto HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Rialto data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
HVAC contractors in Rialto: frequently asked questions
Who is the best HVAC contractor in Rialto?
By CR Score, the highest-ranked HVAC contractor in Rialto, CA is All Pro Cooling, Heating, Plumbing & Electrical with a CR Score of 65/100. It has 4.8★ from 7,425 Google reviews. It is open 24/7. Air One Air Conditioning, Heating, & Plumbing (#2) and MSP HEATING AND AIR CONDITIONING (#3) follow. We ranked 623 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Rialto?
ContractorsRanked ranks 623 HVAC contractors serving Rialto, CA. 4 of them are based in Rialto; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Rialto are open 24/7?
223 ranked HVAC contractors in Rialto post 24/7 hours. The highest-ranked are All Pro Cooling, Heating, Plumbing & Electrical (#1), Air One Air Conditioning, Heating, & Plumbing (#2) and MSP HEATING AND AIR CONDITIONING (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Rialto work on weekends?
479 of 623 ranked HVAC contractors post Saturday hours and 311 post Sunday hours. The highest-ranked open Saturdays are All Pro Cooling, Heating, Plumbing & Electrical (#1), Air One Air Conditioning, Heating, & Plumbing (#2) and MSP HEATING AND AIR CONDITIONING (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in California?
In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).
How much does ac replacement cost in Rialto?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Rialto. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rialto HVAC contractors have?
The median Google rating among 623 rated HVAC contractors in Rialto is 4.9★, with a median of 20 reviews. All Pro Cooling, Heating, Plumbing & Electrical has the most, 7,425 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in Rialto?
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
Update log for Rialto
- October 2026: CR Scores recalculated for 623 hvac contractors serving Rialto.
- October 2026: 5 duplicate listings merged.
More HVAC contractors and Rialto pages
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- Kitchen remodelers in Rialto237 ranked
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- Drywall contractors in Rialto33 ranked
- Concrete contractors in Rialto231 ranked
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- Deck builders in Rialto69 ranked
- Siding contractors in Rialto65 ranked
- Window installers in Rialto389 ranked
- Gutter installers in Rialto64 ranked
- Insulation contractors in Rialto45 ranked
- Solar installers in Rialto333 ranked
- Garage door repair companies in Rialto123 ranked
- Foundation repair companies in Rialto84 ranked
- Tree services in Rialto196 ranked
- Masonry contractors in Rialto96 ranked
- Water damage restoration companies in Rialto672 ranked
- Home builders in Rialto400 ranked
- Demolition contractors in Rialto79 ranked
- All contractors in Rialto